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Check that the hazard warning lamps illuminate when the hazard warning lamp switch is turned ON.
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Q.
Is the check result normal?
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Refer to Inspection Procedure 1 "The hazard warning lamps do not illuminate" .
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Check if diagnosis code is set in the ASTC-ECU.
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Q.
Is the diagnosis code set?
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Troubleshoot the ASTC (Refer to GROUP 35C - Troubleshooting ).
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ASTC-ECU
- Item 10: ESS test mode (Refer to GROUP 35C - Actuator test
).
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OK: The ESS function operates.
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Q.
Is the check result normal?
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Replace the ASTC-ECU (Refer to GROUP 35C - Hydraulic unit ).
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Check that the ESS function works normally.
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Q.
Is the check result normal?
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The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
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